The prototype construction and performance evaluation of dish-type concentrator photovoltaic system

摘要

In this paper, a dish-type concentrator photovoltaic system is taken as an object, whose tracking control strategy and energy conversion characteristics are studied in-depth. Specifically, the dish-type concentrator photovoltaic system is described in detail from the following three parts: dish-type concentrating system, tracking control system and cooling system. Then, an independently closed-loop tracking control system is designed based on programmable logic controller with the tracking accuracy under 1%, which can be demonstrated by the outer wall temperature of the secondary reflector and the temperature distribution of the focus spot. Finally, the maximum power output is estimated to evaluate the overall performance of the dish-type concentrator photovoltaic system.